Mitsubishi Electric MELSEC-Q QD75M User Manual page 710

15 TROUBLESHOOTING
Related buffer memory
address
Axis 1 Axis 2 Axis 3 Axis 4
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Check point
Alarm (A.10) occurs if power is
switched on after disconnection of
the CN1A, CN1B and CN3
connector.
Alarm (any of A.12 to 13, 15) occurs if
power is switched on after
disconnection of CN1A, CN1B and
CN3 connector.
Alarm (A.17, A.18) occurs if power is
switched on after disconnection of
the CN1A, CN1B and CN3
connector.
Reconsider the power supply voltage.
Change the servo amplifier.
Change the servo amplifier.
Connect correctly.
Change the servomotor.
Repair or change the cable.
Use correct combination.
Change the servo amplifier.
Connect correctly.
Change the servomotor.
Repair or change the cable.
Change the cable.
After leaving the alarm occurring for few minutes,
switch power off, then on again.
Always make OPR setting again.
Change the battery unit.
Always make OPR setting again.
After alarm has occurred, hold power on for a few
minutes, and switch it off once, then on again.
Always make OPR setting again.
15 - 47
MELSEC-Q
Corrective action